MPWR- Monolithic Power Systems, Inc.
Insider activity in MPWR over the last quarter tilts toward selling: insiders offloaded a net 15,558 shares worth roughly $21.2M. In the past 30 days, 0 insiders bought and 1 sold.
On the other side, 1 insider reduced a position over the period. MPWR sits in the Semiconductors & Semiconductor Equipment industry within the Information Technology sector, so this activity is best read against the sector's broader insider trend.
Insider Ownership
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| CEO | 983.9K | $1.36B | - | |
| VP | 201.6K | $278.09M | - | |
| VP | 165.0K | $227.60M | - | |
| CFO | 65.6K | $90.49M | - | |
| VP | 36.1K | $49.73M | - |
Activity
Buys and sells only
Transactions
10 filings
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | Chang Kuo Wei Herbert49 | Director | Sell | 50 | $1,420.00 | $71,000.00 | -8.1% | - | - | |
| Jul 15, 2026 | Sciammas Maurice46 | EVP, Ww Sales &Marketing | Sell | 15,000 | $1,349.73 | $20,245,937.01 | -0.5% | - | - | |
| May 26, 2026 | Zhou Jeff50 | Director | Sell | 486 | $1,680.00 | $816,480.00 | -11.3% | - | - | |
| May 26, 2026 | Dean Robert W II | Interim CFO | Sell | 22 | $1,649.56 | $36,290.32 | -0.4% | - | - | |
| May 6, 2026 | Elmiger Eugen J | Director | Sell | 12,000 | $1,584.96 | $19,019,481.56 | -10.2% | -13.7% | - | |
| May 4, 2026 | Sciammas Maurice46 | EVP, Ww Sales &Marketing | Sell | 30 | $1,588.73 | $47,661.90 | -2.4% | -9.4% | - | |
| Apr 8, 2026 | Tseng Saria49 | EVP &General Counsel | Sell | 8,963 | $1,305.22 | $11,698,654.18 | -0.5% | -3.1% | - | |
| Apr 6, 2026 | Tseng Saria49 | EVP &General Counsel | Sell | 7,636 | $1,167.95 | $8,918,434.08 | -0.6% | +9.2% | - | |
| Apr 1, 2026 | Tseng Saria49 | EVP &General Counsel | Sell | 1,400 | $1,133.52 | $1,586,924.40 | -0.2% | +23.5% | - | |
| Mar 20, 2026 | Sciammas Maurice46 | EVP, Ww Sales &Marketing | Sell | 30 | $1,095.07 | $32,852.10 | -2.3% | +46.3% | - |
Page 1Next →